Collapse Of Can - Large Pump

Purpose

To demonstrate the forces created by atmospheric air pressure.
 

Equipment

Vacuum pump with soda cans.

 

Images

i3-16

Description

Start the mechanical vacuum pump, then place a soda can firmly on the top gasket around the pump opening. In a couple of seconds enough air is pumped out of the can so that the can collapses with a bang, jumping off the pump.